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13101350221 = 21821600401
BaseRepresentation
bin11000011001110011…
…01011110101001101
31020211001111112211101
430030321223311031
5203312421201341
610004011223101
7642443432221
oct141471536515
936731445741
1013101350221
115613409373
122657747a91
13130a398c4b
148c3dcc781
1551a2c1831
hex30ce6bd4d

13101350221 has 4 divisors (see below), whose sum is σ = 13101972444. Its totient is φ = 13100728000.

The previous prime is 13101350201. The next prime is 13101350261. The reversal of 13101350221 is 12205310131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9621648100 + 3479702121 = 98090^2 + 58989^2 .

It is a cyclic number.

It is not a de Polignac number, because 13101350221 - 211 = 13101348173 is a prime.

It is a super-2 number, since 2×131013502212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101350201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278380 + ... + 322021.

It is an arithmetic number, because the mean of its divisors is an integer number (3275493111).

Almost surely, 213101350221 is an apocalyptic number.

It is an amenable number.

13101350221 is a deficient number, since it is larger than the sum of its proper divisors (622223).

13101350221 is an equidigital number, since it uses as much as digits as its factorization.

13101350221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622222.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 13101350221 its reverse (12205310131), we get a palindrome (25306660352).

It can be divided in two parts, 1310 and 1350221, that added together give a palindrome (1351531).

The spelling of 13101350221 in words is "thirteen billion, one hundred one million, three hundred fifty thousand, two hundred twenty-one".

Divisors: 1 21821 600401 13101350221